NOAA S-57 chart cell
North Pacific Ocean - Maunalua Bay, Kaiwi Channel, HI
US4HI1ML
- Usage band
- Approach · code 4
- Current edition
- 1.0
- Features
- 339
- S-57 layers
- 39
- Published
- Sep 26, 2025
- Manifest updated
- Jun 22, 2026, 2:51 PM UTC
Coverage
- North
- 21.30000° N
- South
- 21.00000° N
- West
- 157.80000° W
- East
- 157.50000° W
- Center
- 21.15000° N, 157.65000° W
- Bounds area
- 303 sq nm
- Feature density
- 1.1204 / sq nm
Chart Statistics
20 largest layers shown
- Average features per layer
- 8.7
- Smallest layer
- 1
- Largest layer
- 76
- Area sq km
- 1,038
- Features per sq km
- 0.32664
- SBDARE Seabed area 76
- DEPCNT Depth contour 47
- DEPARE Depth area 40
- UWTROC Underwater rock 33
- COALNE Coastline 22
- OBSTRN Obstruction 18
- BRIDGE 9
- PILPNT 9
- RIVERS River 9
- CBLSUB 8
- M_QUAL Data quality 8
- SEAARE Sea area 7
- SOUNDG Sounding 7
- SLCONS Shoreline construction 6
- LNDARE Land area 5
- LNDRGN Land region 4
- LIGHTS Light 3
- BOYSPP Special purpose buoy 2
- BUAARE 2
- LNDMRK 2
Nearby Chart Cells
Approach usage band
Current Edition Files
The NOAA ZIP archive is the upstream source for this chart cell; the other files are Open Ships generated derivatives for web and GIS use.
- Original NOAA ZIP archive https://www.charts.noaa.gov/ENCs/US4HI1ML.zip
- S-57 cell https://charts.openships.ai/noaa/s57/approach/US4HI1ML/1.0/US4HI1ML.000
- GeoJSON https://charts.openships.ai/noaa/s57/approach/US4HI1ML/1.0/US4HI1ML.geojson
- GeoParquet https://charts.openships.ai/noaa/s57/approach/US4HI1ML/1.0/US4HI1ML.parquet
- Metadata JSON https://charts.openships.ai/noaa/s57/approach/US4HI1ML/1.0/metadata.json
Editions
| Edition | Published | Metadata |
|---|---|---|
| 1.0 | Sep 26, 2025 | metadata.json |